2

0

0

1

0

2

4

1

1

6

0

0

0

0

0

0

0

0

3

3

3

3

1

2

0

1

4

0

0

1

0

1

2

0

1

2

5

0

1

9

2

2

0

0

1

0

0

1

0

0

0

0

1

1

7

0

0

6

0

0